Hi, unfortunately motor controllers with the spec you need are expensive, these are industrial application controllers and are constructed as well as circuit designed for a usually hostile environment.I think you may have to keep digging for what you want or go to the trouble of building your own.Most drivers are TTL logic compatible or can be adapted.Good luck, Tom...
Do you need to drive the motor in both directions, or only one? How important ios short-circuit protection?
I found this low cost one http://www.ebay.co.uk/itm/12-24-36V-360W-High-Power-DC-Motor-Driver-Board-Module-Forward-Reverse-Rotate/390636637721?_trksid=p2045573.m2042&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D19099%26meid%3D3016964905972595116%26pid%3D100033%26prg%3D8668%26rk%3D1%26rkt%3D4%26sd%3D221310882825%26 but it isn't short-circuit or over-voltage protected (it's rated 41V maximum).
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